Move findActiveTargetsAroundInsertionPoint to base class

ApplicationLibCode/ProjectDataModel/RimPolylinePickerInterface.cpp

@@ -0,0 +1,48 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2020  Equinor ASA
+//
+//  ResInsight is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.
+//
+//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#include "RimPolylinePickerInterface.h"
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+std::pair<RimPolylineTarget*, RimPolylineTarget*>
+    RimPolylinePickerInterface::findActiveTargetsAroundInsertionPoint( const RimPolylineTarget* targetToInsertBefore )
+{
+    auto targets = activeTargets();
+
+    RimPolylineTarget* before = nullptr;
+    RimPolylineTarget* after  = nullptr;
+
+    bool foundTarget = false;
+    for ( const auto& wt : targets )
+    {
+        if ( wt == targetToInsertBefore )
+        {
+            foundTarget = true;
+        }
+
+        if ( wt->isEnabled() && !after && foundTarget ) after = wt;
+
+        if ( wt->isEnabled() && !foundTarget ) before = wt;
+    }
+
+    return { before, after };
+}